Paper-stock reducing and conveying machine



T. TUCKER.

PAPER STOCK REDUCiNG ANDCONVEYiNG MACHINE. APPLICATiON HLED on. 16, 1912.

1,359,638. mm Nov. 23, 1920.-

l 2 SHEETS-SHEET I.

T. TUCKER. PAPER STOCK REDUCING AND CONVEYING MACHINE.

APPLICATION FILED DEC. I6, I9I8.

. u w r w a. Rm 6 u l 07 mm I 8 a J n m I T M /& :W W, F a Q 5 W L w WM 1 w .z'lppliest'ion fibril. lieeeiu'her 16, 19123. Serial No. 266,926.

p-zuper stock reducing and conveyiugnmchine.

llennolore, in the m 015: reducing paper stock to pulp used in the numu'lizieture of mpenboard, etc, the noose common meihod f reducing "the stool; so lihe necessary de- 1'60, of linens: has been by means of a tub iunl heater roll wherein :1 quantity of the stool: is inijimluced into the'tuh mid coulinuously nmeemltod and beaten uniil all of the stoa is of su'l'lleient fineness whereupon the heating engine is stopped and the reduced sites-l: removed and L e process repealed ioi' another qusniity oi s method has '(JYOYGH v and ine lglmi; it oeeessils s stopping ihe mechanism from time to time and, in edition, it is evident that it necessary to continue l eal; ins" all oi the shock until every position thereo? red in pulp so iliet those. portions oi the siocl: which suilieienlily reduced in the early st,-

ol the o'oei'ation are unbeaten and circululzed iheresleei'.

so celled conihiuous omelstock have been the objections shove lemots, hou'evee, have lunencs and oomolh licieutly redueec use of their complicated constant zilllendance, iceof OK v.ei, thus in sssitsting no down of lhe mechanism, and in )1! do not insure uniform extraeliion or nan body of stock in ihe tuh.

ieci; oi my invention is to provide le, .l'zliilfi' ll'y inexpenw engine and con- 1 the e portions of the l reduced, are im on H W s-iiizlleie.

islion of the mediaiely extracted automatically from the body of the stool": and conveyed from the heating engine.

Another object of my invention is to provide an arrangement of the type indicated in the preceding paragraph which eliminates all mechanical means for effecting the sepw clock.

Still another object of my invention is to provide an arrangement of she type above indicated which may be readily applied as an attachment to the common form of best lug" engines now in use, at comparatively small expense With a resultant increased outputw The invention iii'li'thermoi'e eonsisfs in she improvements in the ports and devices and in the novel oomhinations of the parts and devices herein shown, deseiihed and made the suhject matter of claim.

In th drawing: iorming o. part of this specificoliion. Figure l is a top plan View of a paper stool: reducing mechanism showing my improvements in eouneciion therewith, lilo main portion of the hood over the beater roll being removed and a portion of the screening element shown in section. Fig. 2 is a. longitudinal. vertical. sectional View, Taken substantially on the line 2--2 of Fig. l. Fig. is a sectional View, taken lengthwise of the beater roll and corresponding sul'istnntiolly to the line fil -3 of Fig. 2. And Fig. iis an. enlarged, detail. sectional View illuslzi'aiing more particularly the Waiter flushing pipe and its relation with the adjacent screen.

in said drawing, denotes a tuh of Well known form having: the usual inidfen their ll and heater roll 12v The'beaizer roll 12 is carried by a shaft 13 mounted in hearings fi-fh-ll, that are preferably vertically adjuslable, as by means of the hand Wheels 15, in a Well known manner. T he tub is urovided with a oockfull 16 and the usual hedplate 17 is employed to cooperate with the heater roll 12. The parts above described me or may he of the usual construction.

Over the beater roll on one side thereof is disposed a hood 18, which may also be of the usual construction. Qoopeialole with the healer roll 12 and arranged substantially concentric therewith, is a screen or perforated plate 19. The openings in the screen or plate are preferably of small diameter, and are disposed close together. Sold plate mm of the screen gential to the screen 1 centi'i fags i9 den m m in mizirier Words,

prefambiy eiigipioy m i.

pipe suitable source and {he mimior screen 19 extends over an arc sliginfii g less than av quadrant 01? thepei'ipiiezy of the locaied ciiamairimil er and is INGfQE'HiIij; caiiy oppssit-e, the backfall in actual pram tics, said screen will be Med 21.1mm 'ihI'BQ; 1 fem i1 'hes :fmm the m knives; of the beater r011. iii, the iower end of the screen or plate 19 is disposed :2 preferably sheet metal trough 20 w immr Yams-1y iii the tub and parallel to we is (if time beater wii, sa'ui ti'sugh 20 being ezweni ed to the iiiIiLilEl side 0:? Mae tub and having" a cimr e branch 21 iaiapiieci in: can file sites 110 a. suitabiiz receiving min. Wi ii i, semen 0r pizu'ze 19 am. ed SilOWIl and dimriuvibed ii is evident mm; the paper-sine will i313 tii 3WD thereagainsi; by farm arm: aim to the i Imt subsian'ciaiiy cmm-entric wiiln thescreen the mile? the discharge a??? the sifioci; the smreen will be umfmrm thmuggheut hive anti thus praven'iv iemi e110 0ft stack is im unduly conce itmtec'i particuizn' poini on the swam in Y .s, cammctima it wail of CQUTSE, be umifir- .s'bmd that Hie screw: is coaxtensive in imigth wlth the length of the heater 1 01], "as most dearly indicated in- Fig. 1. the stack 15 thrown gmrainst the screw, it is evidentithat $111039 pmhpnsflmreof which ha we been sufl cient'iy mduced tspass through the relatively smiziiperfyraltions of the plate will p hmugh aha hmes 1111c the ZIISUfiiClQHSh redmmi-stmzk WIH be auiiamatlcaiiy z'eturned ,iiack to "the iwa'teriub far furihr i'ehiction.

scieen Oi pizzfie mevent ii from {his purpose 1' (a n of Waftm' pm jected mid-'31 pressun: airing the 711 outer surface of the perforated plan accomplish this, 1 zijis' use 2w. Waicisupply 22 parallel with the axis of ihs beater 1'01}; and just aioove the highes paint 0;? paiiomtisnS in the plate 19. pipe 22, supplied by Water uncle/2r I "3817. 5mm an a longitudinal slat c0- is essential to keep the bacommy; clogged and 1h 2331a pipe through lI'iJfiIlSliVE with the lsngafiil of the screen. As

cieziriyfiimwn" E2 an l-ei, I arrange the siot 50 that the cl'miain 0r jets 0i Wiii be projected subsmniiaiiy tain- The pipe n'izly be supported byany suitable means, as for instance, by 21 Md 2% havin suitable pipe supporiaing' Clamps '25 izhereon and; in actual O1 dental mtzitiwi practice, the @ianips 25 preferably have 1x (iiaiiy dieqgsseii, reiaiivemy narrow lips 26 QKIJQHCiGFliHiJO'HM, slot 523, CFha lips not 3/ scawe to hold the pipe against accimovement but also, by moimmng the pipe ami .md 24: so to have yeiziiimiyl icingfijtmiiniii movement, the ii 6 can be utiiimdl trim-lean stock ordinarily get out sf order.

En ines.

without necessitating- U1. parts. @n the miter M screen if) provide znoi'her secion a as indie; ted at 27, d the tap i mm'ii 3100c pivoted sown Fifihaiuangg'ed in permin misy access to 116 pipe and screen i By employing the curtain or jets of GJti'tPl' under pressure in conjunction with tin; farmed plate m screen 15), the 'Wflilfll to fins 01" W215i (if? 01' e w 11 'mhnse portio projected through the y plate in 0129.1 maids; the half I v y i V 7. LIES been sufi icien atom is hushed imm and cmiduc'ted 0%. ii the 1. m1, understwc id irtiiemimre, the wa other Graig 21-13? stance 110i; )lii' aimed to the pmprer cmisisteimy. atimi 73.0C436i$ (JODH'LIHGHSIY an'i iii pulp anfiomatiniiy and Witi'm. mechanical means fozvefieicting Mm sepm-a tioni, the utilization 0f the water for flushiigg poses, Actual practice has c iemniisimtcd thaeziziie arrangement is higi ly successfiil and increasesih output 01* the reducing half-stock is n? g down i.

entire process dep ncling upon the pulk.

mechanism ten per cent. to fiii'cy per cent,

according to the character of the stock used, as cnmpared with arrangemenm hei'etofmre empi'oym i. Furthermore, because 0f the gim'piicity of my impmvemenf s, the sama require a minimum of attention and (in not It wiiii aisa be evident that my improvements cam ioe applied 60 the usual farm of beating em gines now employeci with resultant increase in produirfionyas Wail as 1150 new beating Although 1 have herein shown and described what; I new cansider the preferred ii igmilerr of carpymg ou'; my invegiicmn, the

wme is merely illustrative and. 1H comtam plate all changes and modifications that come within the scope ofithe claims appended hereto.

I claim:

1. In an apparatus of the character de scribed, the combination with a tub and beater roll, of means for screening the stock, said means being located adjacent the roll and against which the stock is adapted to be thrown from the roll by centrifugal action; a pipe extending cross-wise of said screen ing means and to which water is adapted to be supplied under pressure. said pipe having a longitudinally extending slot thereon through which the water is adapted to be projected i a curtain on to said screening means to thereby flush the latter: and means for supporting said pipe including an element having a finger extending into said slot, said supporting means and pipe being adapted for relative movement whereby said slot may be cleared by said fingerv upon such relative movement.

2. In an apparatus of the character described; the combination with a tub and a beater roll: of means extending in an are substantially concentric with said roll for s-reening stock thrown thereagainst by cen tri't'ugal action from the roll: and a pipe to which water is adapted to be supplied under pressure, said pipe being disposed adjacent said screening means on the outer side thereof and near the top, said pipe having means for projecting water therefrom sub stantially tangential to the screening means.

3. In apparatus of. the character described, the combination with a tub and beater roll. of a reticulated member arranged substantially concentric with the beater roll and against which the stock is adapted to be thrown by centrifugal action with substantially uniform distribution thereover and means for directing water onto the outer side of said member to thereby flush oli from said outer side those portions of the stock which are projectedthrough the openings of said member.

i. In an apparatus of the character described, the combination with a tub and heater 'roll; of a perforated stock-grading screen, the screen being curved in cross section; and means for projecting a water spray tangential to said perforated screen on-the side thereof remote from the roll whereby the water so projected is adapted to simul' taneously remove those portions of the stock passing through the screen to the outer side thereof and clear back from the inner side into the tub, those portions of the stock tailing to pass through the screen.

In apparatus oi the character described,

the combination with a tub and beater roll' of a stock-grading screen above the tub substantially concentric with the roll and extending over a relatively large arc of the periphery of the roll, said roll being adapted to throw the stock by centrifugal action against said screen with substantially uni form distribution thereover. and means for simultaneously removing those portions of the stock passingthrough the screen to the outer side thercoi and clearing back from the inner side of the screen into the tub those portions of the stock failing to pass through the screen.

6. In apparatus of the character die scribed, the combination with a beater roll,-

ot a screen curved substantially concentric ith the roll, a water supply pipe disposed adjacent said screen on the outer side thereof and having means for projecting water under pressure substantially tangential to said screen.

7 In apparatus of the character described, the combination with a tub and heater roll, of a perforated plate extending over a portion of the periphery of the roll and against which the stock is adapted to be projected by centrifugal force, a pipe adapted to be supplied with water under pressure and located on the outer side oi said plate at the top of the perforations therein, said pipe being provided with. a substantially continuous slot disposed to project a curtain of water along the outer surface of said perforated plate to dash the outer side thereof and force back into the tub those portions of the stock failing to pass through the perforations.

In witness that I claim the foregoing I have hereunto subscribed my name his 11th day of December, 1918.

' T I'OMAS TUCKER. \Vitnesses:

Pram. VREDENBURG.

II. E. QEKWENY. 

